Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Solve the puzzle by telling what does below picture means.

What kind of band never plays music?

A man is found dead in his bathroom naked with blood scattered all around him. The bathroom was locked from the inside and there is no trace of any struggle. There is nothing in the bathroom except his pant with the belt still around and his shirt. Also, the medic team can't find any incision in his body that may have been the reason behind so much blood loss.

The Police department is clueless regarding this murder mystery.
Can you?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

I have branches, but no fruit, trunk or leaves. What am I?

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

How many times can you subtract the number two from the number fifty?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?